CMMVC9056E The create failed because the source and target volumes are members of FlashCopy mappings that have different grain sizes.
Explanation
All FlashCopy mappings that are in a tree of connected mappings must have the same grain size. An attempt was made to create a new FlashCopy mapping that links two existing trees that have different grain sizes.
User response
You have three options.
- Resubmit the command and specify a different source or target volume.
- Delete all of the existing mappings that contain the source volume and resubmit the command.
- Delete all of the existing mappings that contain the target volume and resubmit the command.